Carry a purse in moderate size if necessary during the interview for women
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Carry a brifecase if necessary during the interview for men
A. 对
B. 错
直流斩波电路完成的电力变换功能是()
AC-DC
B. DC-AC
C. AC-AC
DC-DC
Buk斩波电路的输出电压大于等于输入电压。()
A. 对
B. 错
Boost斩波电路的输出电压大于等于输入电压。()
A. 对
B. 错